Semiconductor laser module | |
KATAYAMA SHOJI | |
1988-05-02 | |
著作权人 | NEC CORP |
专利号 | JP1988100790A |
国家 | 日本 |
文献子类 | 发明申请 |
其他题名 | Semiconductor laser module |
英文摘要 | PURPOSE:To improve the efficiency of optical coupling between a semiconductor laser element and an optical fiber by attaching a transparent resin onto the optical outgoing end surface of the semiconductor laser element and optically coupling the resin with the optical fiber. CONSTITUTION:Optical beams 5 are emitted in the longitudinal direction of an active layer 2 from the end surface of an LD element Emitted optical beams 5 are transmitted through a transparent resin 6 attached onto the end surface of the element 1, and projected directly to an optical fiber 3 with a core 4. The resin 6 is affixed onto the end surface of the element 1 by dripping, and the surface of the resin shapes a spherical surface and functions as a kind of a convex lens. Accordingly, the angle of radiation theta' of optical beams 5' emitted from the resin 6 is made smaller than that theta of optical beams 5 immediately after emission from the end surface of the element 1, thus improving the efficiency of optical coupling between the element 1 and the optical fiber. 3. |
公开日期 | 1988-05-02 |
申请日期 | 1986-10-17 |
状态 | 失效 |
内容类型 | 专利 |
源URL | [http://ir.opt.ac.cn/handle/181661/70735] ![]() |
专题 | 半导体激光器专利数据库 |
作者单位 | NEC CORP |
推荐引用方式 GB/T 7714 | KATAYAMA SHOJI. Semiconductor laser module. JP1988100790A. 1988-05-02. |
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